Application of near-infrared reflectance spectroscopy to evaluate the lutein and beta-carotene in Chinese kale
文献类型： 外文期刊
作者： Chen, Xinjuan 2 ; Wu, Jianguo 3 ; Zhou, Shengjun 2 ; Yang, Yuejian 2 ; Ni, Xiaolei 3 ; Yang, Jing 3 ; Zhu, Zhujun 1 ; Shi 1 ;
作者机构： 1.Zhejiang Forestry Univ, Sch Agr & Food Sci, Linan 311300, Peoples R China
2.Zhejiang Acad Agr Sci, Inst Vegetable Sci, Hangzhou 310021, Zhejiang, Peoples R China
3.Zhejiang Univ, Coll Agr & Biotechnol, Hangzhou 310029, Zhejiang, Peoples R China
关键词： Chinese kale;Brassica oleracea alboglabra;Near-infrared reflectance spectrosopy (NIRS);Carotenoid extraction method;Lutein;beta-Carotene;Food composition;Food analysis
期刊名称：JOURNAL OF FOOD COMPOSITION AND ANALYSIS （ 影响因子：4.556； 五年影响因子：4.89 ）
ISSN： 0889-1575
年卷期： 2009 年 22 卷 2 期
页码：
收录情况： SCI
摘要： There arc wide ranges of lutein and beta-carotene in Chinese kale. This work assessed the capability of near infrared reflectance spectroscopy (NIBS) to predict the contents of lutein and beta-carotene in Chinese kale against HPLC analysis. Compared to other regression methods, the regression of modified partial least squares with lath treatments of 2,4,4,1 (where the first number)er of 2 represents the second derivative of log 1/R, the second of 4 is the gap in data points liver which the derivative is calculated, the third and fourth numbers refer to the number of data points used in the first and second smoothing, respectively) showed the best results. the calibration equations of lutein and beta-carotene were characterized by the coefficients of determination (RSQ) of 0.983 and 0.982 and standard error of 0.056 and 0.131 mg g(-1) DW respectively. In cross-validation, high 1 minus variance ratio (1 - VR) of 0.955 and 0.966 and standard error of 0.092 and 0.179 mg g(-1) DW for lutein and beta-carotene were obtained, respectively. In external validations, the RSQ were 0.926 and 0.875 with standard error of 0.131 and 0.367 mg g(-1) DW, respectively. These results showed that NIBS could be used for the determination of carotenoids in Chinese kale. (C) 2005 Elsevier Inc.. All rights reserved.
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